CBSE Class 7 Maths Chapter 15 Notes Visualising Solid Shapes Visualising Solid Shapes Class 7 Notes Conceptual Facts Solid Shapes: 1. Cuboid: Cuboid has length, breadth and height. 2. Cube: Cube has all sides equal. 3. Prism: (i) Triangular prism: (ii) Rectangular prism: 4. Pyramid: (i) Triangular pyramid (ii) Rectangular pyramid: 5. Tetrahedron: A triangle…
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CBSE Class 7 Maths Chapter 14 Notes Symmetry Symmetry Class 7 Notes Conceptual Facts Symmetry; If a paper is folded in half and the two halves of the paper exactly cover each other, then the shape of the paper is symmetric. For example: Axis of symmetry: When a figure is folded in half then the…
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CBSE Class 7 Maths Chapter 9 Notes Exponents and Powers Exponents and Powers Class 7 Notes Conceptual Facts 1. Exponents are used to express the large numbers in shorter form to make them easier to read, compare the understand. 2. When a number is multiplied by itself several times, it can be expressed in short…
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CBSE Class 7 Maths Chapter 12 Notes Algebraic Expressions Algebraic Expressions Class 7 Notes Conceptual Facts 1. Algebraic expressions are formed by using variables and constants. For example: the expression 2x + 3y + 1 is formed by the variables x and y the constants 2, 3 and 1. 2. Expressions are made up terms.…
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CBSE Class 7 Maths Chapter 11 Notes Perimeter and Area Perimeter and Area Class 7 Notes Conceptual Facts 1. Perimeter is the actual distance around a closed figure. 2. Perimeter of a regular polygon = Number of sides x Length of one side 3. Perimeter of a square = 4 x side 4. Perimeter of…
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CBSE Class 7 Maths Chapter 10 Notes Practical Geometry Practical Geometry Class 7 Notes Conceptual Facts 1. By using properties of a transversal and parallel lines, a line parallel to a given line passing through a given point lying not on the line can be drawn. Let P is any point outside of the given…
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CBSE Class 7 Maths Chapter 9 Notes Rational Numbers Rational Numbers Class 7 Notes Conceptual Facts 1. Rational numbers: The number which are in the form of \(\frac{p}{q}\) where p and q are co-prime and q ≠ 0 are called rational numbers. 2. All integers and fractions are rational numbers. 3. When we compare two…
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CBSE Class 7 Maths Chapter 8 Notes Comparing Quantities Comparing Quantities Class 7 Notes Conceptual Facts 1. Ratio: Comparison of two quantities of same kind and with same unit is called ratio. For example: a : b or \(\frac{a}{b}\) where a is called Antecedent and b Consequent. b 2. Ratio in simplest form: A ratio…
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CBSE Class 7 Maths Chapter 7 Notes Congruence of Triangles Congruence of Triangles Class 7 Notes Conceptual Facts 1. Congruence: The objects having same shape and same size are called congruent. The symbol of congruence is ‘≅’. Example: Two coins of same denominations. Two toys made of the same mould. Two biscuits in the same packet.…
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CBSE Class 7 Maths Chapter 6 Notes The Triangles and its Properties The Triangles and its Properties Class 7 Notes Conceptual Facts 1. A triangle is a simple closed figure made up of three line segments. 2. ΔABC has three sides AB, BC and CA and three angles ∠ABC, ∠BCA and ∠CAB. These are called…
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